I LOST THE TRACK OF MY FAVOURATE MANGA, KINDLY HELP REMEMBER THE TITLE?

The manga in question is a about a poor girl with plenty brothers and sisters who are not blood related. The eldest of the brothers is a play boy who keeps leaving the house early in the morning promissing to come back home with plenty of food, but instead just takes along lots of problems and debts(and children from the street). One day this girl went to the market hoping to find smthng to feed the children, being desperate she accepted the offer of a rich guy who was willing to buy her and give her whatever she likes as long as she promise to give herself up and marry him( the purpose of the marriage is essential for the rich guy so as to aquire a family property and to distract a friend from his real intension) ...the story is quet long bacause the friend of the rich guy developed an interest for this girl who by the way he has already met in the past with different garments (poor). PLS HELP ME OUT FIND THE NAME OF THIS MANGA COS I CANNOT REMEMBER MANY THANKS.